A better way would be to use Stopwatch, instead of DateTime differences. Stopwatch Class – Microsoft Docs Provides a set of methods and properties that you can use to accurately measure elapsed time. // create and start a Stopwatch instance Stopwatch stopwatch = Stopwatch.StartNew(); // replace with your sample code: System.Threading.Thread.Sleep(500); stopwatch.Stop(); Console.WriteLine(stopwatch.ElapsedMilliseconds);
I just built a few TimeSpan Extension methods. Thought I could share: public static string ToReadableAgeString(this TimeSpan span) { return string.Format(“{0:0}”, span.Days / 365.25); } public static string ToReadableString(this TimeSpan span) { string formatted = string.Format(“{0}{1}{2}{3}”, span.Duration().Days > 0 ? string.Format(“{0:0} day{1}, “, span.Days, span.Days == 1 ? string.Empty : “s”) : string.Empty, span.Duration().Hours > … Read more
You can work around this very easily by changing your signature. void Foo(TimeSpan? span = null) { if (span == null) { span = TimeSpan.FromSeconds(2); } … } I should elaborate – the reason those expressions in your example are not compile-time constants is because at compile time, the compiler can’t simply execute TimeSpan.FromSeconds(2.0) and … Read more
You won’t be able to get that from a TimeSpan, because a “month” is a variable unit of measure. You’ll have to calculate it yourself, and you’ll have to figure out how exactly you want it to work. For example, should dates like July 5, 2009 and August 4, 2009 yield one month or zero … Read more
For checking for a time of day use: TimeSpan start = new TimeSpan(10, 0, 0); //10 o’clock TimeSpan end = new TimeSpan(12, 0, 0); //12 o’clock TimeSpan now = DateTime.Now.TimeOfDay; if ((now > start) && (now < end)) { //match found } For absolute times use: DateTime start = new DateTime(2009, 12, 9, 10, 0, … Read more
This is only a slight modification on the approach suggested in the question, but this Microsoft Connect issue recommends using a property for serialization like this: [XmlIgnore] public TimeSpan TimeSinceLastEvent { get { return m_TimeSinceLastEvent; } set { m_TimeSinceLastEvent = value; } } // XmlSerializer does not support TimeSpan, so use this property for // … Read more
you may also want to look at var hours = (datevalue1 – datevalue2).TotalHours;
I’d store it in the database as a BIGINT and I’d store the number of ticks (eg. TimeSpan.Ticks property). That way, if I wanted to get a TimeSpan object when I retrieve it, I could just do TimeSpan.FromTicks(value) which would be easy.